EP0281308A3 - Decision-directed control circuit - Google Patents

Decision-directed control circuit Download PDF

Info

Publication number
EP0281308A3
EP0281308A3 EP88301558A EP88301558A EP0281308A3 EP 0281308 A3 EP0281308 A3 EP 0281308A3 EP 88301558 A EP88301558 A EP 88301558A EP 88301558 A EP88301558 A EP 88301558A EP 0281308 A3 EP0281308 A3 EP 0281308A3
Authority
EP
European Patent Office
Prior art keywords
decision
control circuit
directed control
directed
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88301558A
Other versions
EP0281308A2 (en
EP0281308B1 (en
Inventor
Martin Howard Meyers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
American Telephone and Telegraph Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by American Telephone and Telegraph Co Inc filed Critical American Telephone and Telegraph Co Inc
Publication of EP0281308A2 publication Critical patent/EP0281308A2/en
Publication of EP0281308A3 publication Critical patent/EP0281308A3/en
Application granted granted Critical
Publication of EP0281308B1 publication Critical patent/EP0281308B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0054—Detection of the synchronisation error by features other than the received signal transition
    • H04L7/0062—Detection of the synchronisation error by features other than the received signal transition detection of error based on data decision error, e.g. Mueller type detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/002—Reducing depolarization effects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • H04L25/03038—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/20—Repeater circuits; Relay circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/06—Demodulator circuits; Receiver circuits
    • H04L27/066—Carrier recovery circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0079—Receiver details
    • H04L7/0083—Receiver details taking measures against momentary loss of synchronisation, e.g. inhibiting the synchronisation, using idle words or using redundant clocks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Dc Digital Transmission (AREA)
  • Noise Elimination (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
EP88301558A 1987-03-02 1988-02-24 Decision-directed control circuit and method of adjusting decision-directed apparatus Expired - Lifetime EP0281308B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US20870 1987-03-02
US07/020,870 US4759036A (en) 1987-03-02 1987-03-02 Decision-directed control circuit

Publications (3)

Publication Number Publication Date
EP0281308A2 EP0281308A2 (en) 1988-09-07
EP0281308A3 true EP0281308A3 (en) 1990-03-28
EP0281308B1 EP0281308B1 (en) 1995-04-26

Family

ID=21801040

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88301558A Expired - Lifetime EP0281308B1 (en) 1987-03-02 1988-02-24 Decision-directed control circuit and method of adjusting decision-directed apparatus

Country Status (6)

Country Link
US (1) US4759036A (en)
EP (1) EP0281308B1 (en)
JP (1) JP2718937B2 (en)
KR (1) KR920007473B1 (en)
CA (1) CA1293534C (en)
DE (1) DE3853642T2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1310709C (en) * 1989-06-26 1992-11-24 Simon Haykin Adaptive interference canceller
US5245632A (en) * 1990-08-08 1993-09-14 National Semiconductor Corporation Synchronous FSK detection
US5432794A (en) * 1991-01-29 1995-07-11 Canon Kabushiki Kaisha Automatic Equalizer
US5369667A (en) * 1991-10-16 1994-11-29 Sony Corporation Apparatus and method for automatically adjusting parameters of an automatic equalizer
JP3225560B2 (en) * 1991-11-27 2001-11-05 日本電気株式会社 Cross polarization interference compensator
EP0577901B1 (en) * 1992-07-10 2000-04-26 International Business Machines Corporation Adaptive equalization system and method
DE59410289D1 (en) * 1993-10-08 2003-06-26 Siemens Mobile Comm Spa Method for adapting the center tap of the transverse equalizer in a system for cross polarization compensation
US5539774A (en) * 1994-06-15 1996-07-23 International Business Machines Corporation Dual decision equalization method and device
US5544200A (en) * 1994-12-08 1996-08-06 Titan Information Systems Corporation Acquisition of carrier phase and symbol timing through joint estimation of phase and timing adjustments
FR2736231A1 (en) * 1995-06-28 1997-01-03 Trt Telecom Radio Electr DIGITAL COMMUNICATION SYSTEM COMPRISING A RECEIVER HAVING A RHYTHM RECOVERY DEVICE
EP0912010B1 (en) * 1997-09-26 2008-12-31 Micronas GmbH Phase locked loop for a receiver of digitally transmitted signals
US20070053287A1 (en) * 2005-09-07 2007-03-08 Gang Li System and method for selecting data rates in a wireless communication system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4458356A (en) * 1982-07-02 1984-07-03 Bell Telephone Laboratories, Incorporated Carrier recovery circuit
EP0121805A2 (en) * 1983-03-15 1984-10-17 Siemens Aktiengesellschaft Synchronisation of clock oscillators which can be pulled in by the transmission of digital signals
US4635276A (en) * 1985-07-25 1987-01-06 At&T Bell Laboratories Asynchronous and non-data decision directed equalizer adjustment
EP0213309A2 (en) * 1985-06-29 1987-03-11 Nec Corporation Automatic gain control circuit

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3323066A (en) * 1963-05-23 1967-05-30 Aircraft Radio Corp Squelch circuit
US3466430A (en) * 1967-01-11 1969-09-09 Collins Radio Co Extreme parameter search control system
US4300080A (en) * 1979-10-22 1981-11-10 Sperry Corporation Power driver control circuit for servo actuator
US4343041A (en) * 1980-04-03 1982-08-03 Codex Corporation Modem circuitry
JPS5787244A (en) * 1980-11-19 1982-05-31 Toshiba Corp Wide band television tuner
FR2512977A1 (en) * 1981-09-11 1983-03-18 Thomson Csf ELECTROHYDRAULIC SERVOVALVE DEVICE
US4608703A (en) * 1983-05-12 1986-08-26 Ricoh Company, Ltd. Synchronization detection system for data transmission
CA1238368A (en) * 1983-10-14 1988-06-21 Takayuki Ozaki Digital radio receiving apparatus
US4709374A (en) * 1984-07-05 1987-11-24 American Telephone And Telegraph Company Technique for decision-directed equalizer train/retrain
US4606054A (en) * 1985-02-21 1986-08-12 At&T Bell Laboratories Cross-polarization interference cancellation
US4648100A (en) * 1985-03-28 1987-03-03 At&T Bell Laboratories Carrier recovery circuit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4458356A (en) * 1982-07-02 1984-07-03 Bell Telephone Laboratories, Incorporated Carrier recovery circuit
EP0121805A2 (en) * 1983-03-15 1984-10-17 Siemens Aktiengesellschaft Synchronisation of clock oscillators which can be pulled in by the transmission of digital signals
EP0213309A2 (en) * 1985-06-29 1987-03-11 Nec Corporation Automatic gain control circuit
US4635276A (en) * 1985-07-25 1987-01-06 At&T Bell Laboratories Asynchronous and non-data decision directed equalizer adjustment

Also Published As

Publication number Publication date
KR880012040A (en) 1988-10-31
JPS63228826A (en) 1988-09-22
EP0281308A2 (en) 1988-09-07
CA1293534C (en) 1991-12-24
US4759036A (en) 1988-07-19
KR920007473B1 (en) 1992-09-04
DE3853642T2 (en) 1995-09-28
DE3853642D1 (en) 1995-06-01
JP2718937B2 (en) 1998-02-25
EP0281308B1 (en) 1995-04-26

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